For which commit? -- Christian
On 18 January 2019 at 09:35AM, Christoph Hellwig wrote:
Hi Christian, can you check if the debug printks in this patch trigger? diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 355d16acee6d..e46c9b64ec0d 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -118,8 +118,11 @@ struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, page = NULL; } } - if (!page) + if (!page) { page = alloc_pages_node(dev_to_node(dev), gfp, page_order); + if (!page) + pr_warn("failed to allocate memory with gfp 0x%x\n", gfp); + }if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {__free_pages(page, page_order); @@ -139,6 +142,10 @@ struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, } }+ if (!page) {+ pr_warn("failed to allocate DMA memory!\n"); + dump_stack(); + } return page; }
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